Hu Yuehui 1 Lei Mingshen 2 Wu Hanshui(1.Department of Mechanical and Electronic Engineering,Jindezhen Ceramic College,Jindezhen 333001 China; 2.Department of Physics,Jiangxi Normal University,Nanchang,330027 China)
Abstract:A New method to be deduced the relatioship of magnet-entropy of paramagnetic substance in this paper by the free energy of system and the relationship of thermodynamics,the result show that:1,the character of spin-entropy will be kept invariant only in se